After starting out at his local club Vranić, Đoinčević played for Žarkovo in the Belgrade Zone League.
[1] In late summer 1990, Đoinčević moved abroad to Portugal and signed with Primeira Divisão newcomers Salgueiros.
He helped the Paranhos side to a fifth-place finish in his first season, starting in all of his 36 appearances, as the club qualified to the 1991–92 UEFA Cup.
[3] After hanging up his boots, Đoinčević enjoyed success as manager of his former club Rad, being voted best in the domestic league for 1999 in a poll organized by Politika.
[8] After his third stint with Rad, Đoinčević served as manager of Serbian First League clubs Bežanija (October 2005–May 2006) and Voždovac (2007).